Nothing newer than the workaround I suggested to you in https://ephere.com/plugins/autodesk/max/ornatrix/defect_13179.html - did you try it?
The way Redshift currently deploys and uses its copy of Qt makes it next to impossible for other plugins to use Qt (unless there exists some workaround to make two different Qt versions coexist within the same process, of which I'm highly sceptical, but only a Qt expert could tell).
In the current situation our best choice is to give up Qt and implement some other (much less user friendly) method for the user to install their license. We haven't made that decision yet.
Ivan Kolev (Software Developer, EPHERE Inc.)
E-mail: ivan.kolev at ephere dot com
Discord: ikolev